Diathermocoagulation in Cagliari: Skin Lesion Removal

    Surgical precision, outpatient procedures.

    Diathermocoagulation is a technique that uses high-frequency electrical current to remove superficial skin lesions such as skin tags, seborrhoeic keratoses, cherry angiomas and dilated capillaries.

    • State-of-the-art equipment
    • Local anaesthesia, outpatient procedure
    • Ideal for superficial benign lesions
    • Immediate, natural aesthetic result

    How Diathermocoagulation Works

    DTC uses an electrosurgical unit (a device that generates high-frequency electrical current, over 500 kHz) through a small pointed electrode. When the electrode is applied to the lesion, the current causes localised heating that leads to the vaporisation or coagulation of the tissue.

    Unlike cutting with a traditional scalpel, DTC simultaneously produces haemostasis (closure of the small blood vessels), keeping bleeding to a minimum.

    Main Indications

    Raised Lesions

    • Skin tags (acrochordons) — very common on the neck, armpits and eyelids
    • Seborrhoeic keratoses — benign pigmented lesions appearing after the age of 40
    • Common, plantar and filiform warts
    • Genital warts (condylomata acuminata)
    • Molluscum contagiosum in selected cases

    Superficial Vascular Lesions

    • Cherry angiomas — common red vascular lesions appearing after the age of 40
    • Facial telangiectasias
    • Small pyogenic granulomas

    Other Indications

    • Xanthelasma (yellowish deposits on the eyelids)
    • Sebaceous hyperplasia
    • Syringomas and small skin tags

    For large or deep lesions, traditional dermatological surgery with excision and suturing is preferable.

    How the Procedure Is Performed

    Local Anaesthesia

    For most procedures a local anaesthetic is used, given as a small injection of lidocaine. For very small lesions EMLA cream alone may be enough. The anaesthesia makes the procedure completely painless.

    The Procedure

    The electrode is applied to the lesion and — within a few seconds — the lesion is removed or vaporised. Duration: from a few minutes up to 30-45 minutes for multiple lesions.

    After the Treatment

    • • A small scab forms and falls off in 7-14 days
    • • Keep the area clean and dry
    • • Apply antibiotic/healing ointment if prescribed
    • • Protect from the sun with SPF 50+

    Frequently Asked Questions about Diathermocoagulation

    Is DTC painful?

    No, thanks to local anaesthesia. You only feel the initial prick of the anaesthetic injection (a few seconds). During the procedure itself you feel nothing.

    How long does the procedure take?

    For a single lesion, a few minutes. For multiple lesions, up to 30-45 minutes.

    How long does full healing take?

    The scab falls off in 7-14 days. Complete healing, with the fading of any residual redness, takes 3-6 weeks.

    Does it leave scars?

    It generally leaves small, barely visible scars. For smaller lesions the result is often almost invisible after a few months.

    Can I go to work after the procedure?

    Yes. Most patients resume their normal activities immediately after the procedure.

    Can DTC be used on lesions on the face?

    Yes, this is one of the most common indications. Particularly for skin tags, seborrhoeic keratoses, cherry angiomas and xanthelasma.

    Will the lesion come back after treatment?

    For lesions completely removed with DTC, recurrence in the same area is rare. Some viral lesions (warts, genital warts) have a tendency to recur that is linked to the virus, not to the technique.

    How much does a DTC session cost?

    Costs vary depending on the number and type of lesions treated. For a personalised quote, contact us via WhatsApp.

    Related Services

    Diathermocoagulation is one of the minor dermatological surgery techniques at Centro Eudermia, and it complements cryotherapy, the treatment of warts and genital warts.

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    Reviews translated from the original Italian

    “I went to the doctor for a dermatological removal. As well as being extremely kind, she was excellent and very gentle. Very meticulous throughout the visit. I had a great experience and will definitely go back.”

    Margherita G.2025

    Book Your DTC

    Via Filippo Figari, 7 — 09131 Cagliari · Mon–Fri 4:00–8:00 pm